Zoo officials say Aurora had a deteriorating liver and a compromised gall bladder, but a definitive cause of death will not be available until further tests are completed.

“The loss of such a beloved animal is difficult for the entire zoo family,” said Zoo Director Larry Sorel. “Aurora captured the hearts of staff and guests alike. She will be deeply missed.”

Aurora was born at Utah's Hogle Zoo in 1989 and arrived at Seneca Park Zoo in 1991. During her time at the Zoo, Aurora gave birth to four offspring: three females, Anoki, Sila, and Haley, and one male, Qilak.

Female polar bears have an average life expectancy of about 24 years in human care.